Effects of the salt-isolation layer on dynamic changes of soil salinity and growth of Sophora japonica L. in coastal area
DI Feng-Hui-1, LI Su-Yan-1Ying, SUN Xiang-Yang-1, ZHANG Dong-Hua-2, ZHANG Chao-1, ZHANG Wei-1, CHENG Long-2
(1. Beijing Forestry University,Key Lab. of Soil & Water Conservation and Desertification Combating of Ministry of Education,100083,Beijing; 2. The Forestry Workstation in Coastal District of Tianjin,300270, Tianjin: China)
摘要以天津市大港区的盐渍土为研究对象,通过大田试验分别在栽植穴底部和侧壁铺设10 cm 厚的陶粒、蛭石和沸石作为隔盐层,研究种植国槐后不同隔盐措施对中度盐碱地的改良效果。通过每月定期测定土壤盐分质量含量及国槐的生长指标,分析不同隔盐措施的降盐效果及对国槐生长状况的影响。结果表明:不同隔盐措施的表层土壤盐分质量含量受当地气候条件的影响发生积盐和脱盐的周期性变化,在此期间出现2 次显著的聚盐高峰期,分别是春末和夏末;3 种隔盐材料都能够降低该地区土壤中的主要盐离子和全盐量,其中以沸石作为隔盐层处理的降盐效果最佳;不同隔盐措施都能够改善国槐生长环境,其中以沸石作为隔盐材料最有利于改善国槐生长环境,可最大程度地促进国槐生长。
Abstract：This article took the saline-alkali soil in Dagang District, Tianjin as the object of study and chose ceramicite, vermiculite and zeolite respectively as the salt-isolated layer at the bottom and side wall of planting hole. Based on the treatments, Sophora japonica L. was planted, and then the dynamic changes of soil salinity and growth of plants were measured every month. At the same time, we analyzed the effects of different treatments on the salt reduction and growth of Sophora japonica L. After the whole year measurement, the results showed that salinity accumulation and desalinization of surface soil were influenced by periodic property of local climate conditions. The salt accumulation peak period appeared at the end of spring and summer. Those three salt-isolated treatments had significant effects on the main salt ions, total salt content and growth of Sophora japonica L. . Zeolite was not only the most effective salt-segregation material, but also the most useful material for accelerating the rate of plant growth.
翟鹏辉1, 李素艳1, 孙向阳1, 张冬华2, 张涛1, 张薇1, 程龙2. 隔盐层对滨海地区盐分动态及国槐生长的影响[J]. 中国水土保持科学, 2012, 10(4): 80-83.
DI Feng-Hui-1, LI Su-Yan-1Ying, SUN Xiang-Yang-1, ZHANG Dong-Hua-2, ZHANG Chao-1, ZHANG Wei-1, CHENG Long-2. Effects of the salt-isolation layer on dynamic changes of soil salinity and growth of Sophora japonica L. in coastal area. SSWCC, 2012, 10(4): 80-83.
2012, Vol. 10 
